Turbine.



J.v H'. GORTHSY.

TURBINE. APPLIOATION FILED MAY 7, 1910d Patented Jan. EQ; T93.

'i UNITED s'rArEs PATENT orifice.

JULES HIPPOLYTE conTEEsY, lor LONDON,.ENGLAND, AssIGNoE-or' ONE-HALF roHAROLD FULLER, or WIVENHOE, ENGLAND.

TURBI'NE.

specification of Leiters ratent. PatentedJ an 10, 1911.

' Application tiled May 7,1910. Serial No. 559,870.`

y To all whom 'it my conccrn:

- Be it known that I, JULES HIPPOLYTE Con- 'rIrsr, a subject of the Kingof Great Britain, residing at 'lliornhill Houses, Barnsbury, London,England, have invented new and useful ,Improvements in Turbines, ofwhich the following is a specification.

This invention relates to turbines,y and particularly those in which theactuating ttuid travels with the rotor through a large portion of itsrotation 'before being discharged, and has for its object to avoid theloss of kinetic energy of the actuating tiuid resulting from itsinipingein nt and consequent friction with the curve( 'surface of thecasing or chamber inclosing ther rotor.

According to tlieinveiition al ring or circular shield is attach'edtotheouter extremities of the rotor blades so as to cover niore or less ofthe inner surface ot the' inelosing easing, the tangential jet, jets ortiow of'actuat.-

ing fluid impinging against the moving ring as it rotates with the rotorinstead of againstthe stationary curved surface of the inclosing casing.

The ring or shield may have more or less tangential apertures to allow acertain amount ot the actuating tluid to. pass through in the directiondesired for the purpose ot favoring rotation or diminishing the tluiddensity or pressure inthe space between the outer peripher ot' the saidringand the inner surface of the chamber. 'lhe ring may be formed ofseparate pieces or blades so disposed as to cause the travelingfluid/'to be redirectial at, say, a slight inward angle to thel tangentfrom one such separate piece or blade'on to the next. one forward, owingto the fluid velocity being greater than that of the rotor, thusavoiding the fluid in a state ol velocity or velocity and pressure`coming iin direct. contact with the said staf said casingfa.

modifications. Figs. 6 and 7 arevieivs simi- 4lar to Figs. l and 2respectivelyillustrating another modification.

. a is the outeil inclosing casing yof `the turbine and I), 'b aretlierotor blades carried by the boss c on the shaft al and inelosed by thee, are the apertures in the casing 'a for the passage ofI thefiui'dfforl actuating the rotor.

is the ring or circular shield attached to the'outenextreniitiesof theblades I), b by the .use of which ring the tiu'idinipingi'nv againstvthe said bladeswillube' prevented troni-striking the inner curvedsurface of the casing awvlierebv the consequent loss of energyisavoided. V e. 1n Figs. 1 and 'Qthe ring fis shown as being otrectangular forni in 'eross section, while in I1`ig.` 3 it is of asomewhaty crescent forni. 'f f I g, ,r/ Fig. tare the tangentialapertures with which t-lie ring f may be provided to allow the fluidwhich has passedbetween the ring and the casing to be drawn within thering by suction due to the higher velocity of the fluid passing throughand actuating tlie rotor.

Fig. 5 illustrates the arrangement in which the ring is formed of aseries of separate pieces or blades la., L. 'lliese blades h, L arearranged tangentially as shown and in such relation that a portion ofVthe steam passing through the rotor is redirected from the innersurface of one blade to the inner surface of an adjacentl blade and thusin addition to being prevented from coming into direct contactwith theCurved' surface of the chamber a assists rotation.l

ln Figs. and 7 z', 'i are tangential apertures Aformed in the innercurved surface of the casing a by which jets of tluid may be directed onto the outer surface of the ring f to prevent any condeusatioii of Huidthat has passed into the space bet-Ween the said ,ring and the casinga,and which Would tend to retard the movement ot the ring, and also toassist 1n propelling the latter. These Jets 11i the' drawing are ted'from a common passage j, but they may be' fed in any otherv manner.1 Inthe said Fig. 6,- the ring f is shown solid but it inay be formed withtangential apertures, as in the arrangement shown in Fig. 4.

Having now particularly described and 'ring or-shieid attached to theouter'extremil in the ring attached to the rotor blades su thepurposedescribed. 1.5

tial y as and for the purpose set ascertained the nature of my said.invention and in whatvmanner the vsame is to be performed, I declarethat what I claim is 1. In a fluid pressure turbine having a ties of therotor blades, tangential openin s s'tantially as, and for the purposesetiorth. 2. In a fluid pressure turbine having a ring or shield,attached to the4 outer extremi` ties of the rotor blades, thecombination with the said ring of a series of separate pieces or blades,substantially as, and or 3. In a iuid'pressure turbine having a 7,'In afluid bination with t e casing,' provided with' ring or' shield attachedto the outer extremities ofthe rotor blades, apertures in the outercasing whereby jets of fluid are directed on to the' outer periphery ofthe ri'n surroundingI the -rotor blades sulistanort ` 4'. In a fluidpressureturbine, the combination with a casingprovidedwith axialpassages for the pressure huid, of a rotor within-said casing rovidedwith. blades in line with said axia passages, a rin surrounding saidblades and provided wit -pas'` sages extending from the inner face ofsaid ring to the outer face thereof and communi- -catingwith the spacebetween-the rotor and ,the casing.v

casing, the portions of said rin between said passages therein', havingsu stantially tangential faces for directing the Huid from one face'toanother.

6. In a Huid pressure turbine, the combinain said casing provided withblades in line with said axlal assages, a ring surrounding said bladesan-provided with :Sieglurality' of separated tangentially disp blades,

having tangentia the outer face of said ring,

ressure turbine, the -comaxial passa s for the pressure fluid 4of arotor provi ed with bla es inline with said passages, a ring surroundingsaid blades andconnected with the rotor, said casin being provided withtangentiallyldispose passages communicating with the space between theouter periphery ofsaid rlng and in the casiihg 8. Ina bination with thecasing, provided with axial passa es for the pressure fluid, of a rotorprovi ed with' blades in'line with said passages, a' ring surroundingsaid blades and .connected with the rotor, said casing ,being providedwith tangentially disposed pas' sages communicating with the spacebetween .the outer lperiphery 'of said ring and said rotor, land acommon passage communicatingwith said tangential passages, and means forsupplying fluid under pressure to said common passage.

' l JULES HIPPOLYTE commer. d Witnesses:

JOHN E. BoUsrmLD,

- C. REDFERN.

uid pressure turbine, the com- .45 tion with` a casing provided withaxial passages for thepressure uid, of a rotor withly disposediliassagesbev tween them leading from`the inner face to*v fsaid rotor, -and meansfor suppl ing Huid i under pressure to said tangentia passages

